BFP: Liturgical Battlefield: Are You a Victim or Combatant?

Pope Francis is reported to have said that we should not make a battlefield of the liturgy.  Because he complains of people hanging on to outdated things and old ideas, it is like he is saying that people who want a united and sacred liturgy disrupt the purpose of liturgy...  who are the real combatants?  why is this deja vu?  and what did Father Hardon say we can do about it?